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Patent Searching and Data


Title:
SYSTEM AND METHOD FOR SWITCHING LINE SHORT-CIRCUIT FAULT SECTION IN INVERTER-BASED STAND-ALONE MICROGRID
Document Type and Number:
WIPO Patent Application WO/2018/056503
Kind Code:
A1
Abstract:
The present invention provides a system and a method for switching a line short-circuit fault section in an inverter-based stand-alone microgrid, the system comprising: multiple intelligent switchgears disposed on a line in a stand-alone microgrid so as to control opening or closing of the line; a battery inverter having a built-in current limiter so as limit a current output therefrom; and an operating system for receiving short-circuit fault information of the line from the multiple intelligent switchgears, determining a fault section, and controlling the battery inverter to limit the output current. The present invention can quickly and accurately switch a line short-circuit fault section occurring in a stand-alone microgrid which does not include separate cutoff equipment such as a recloser.

Inventors:
WON JONG-NAM (KR)
CHAE WOO-KYU (KR)
LEE HAK-JU (KR)
PARK JUNG-SUNG (KR)
SIM JUN-BO (KR)
Application Number:
PCT/KR2016/013069
Publication Date:
March 29, 2018
Filing Date:
November 14, 2016
Export Citation:
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Assignee:
KOREA ELECTRIC POWER CORP (KR)
International Classes:
H02H3/08; H02H3/05; H02H7/26; H02J3/38
Foreign References:
US20130015703A12013-01-17
KR20150035277A2015-04-06
KR101264142B12013-05-15
KR101516802B12015-05-04
US20160179991A12016-06-23
Attorney, Agent or Firm:
HANYANG PATENT FIRM (KR)
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